21111556

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{1181}}^1$

素因数の和:1335

約数の個数: 24

約数和(自身を含む): 38225880

約数和(自身を除く): 17114324

約数列:

[1, 2, 4, 41, 82, 109, 164, 218, 436, 1181, 2362, 4469, 4724, 8938, 17876, 48421, 96842, 128729, 193684, 257458, 514916, 5277889, 10555778, 21111556]

約数ペア:

[(1, 21111556), (2, 10555778), (4, 5277889), (41, 514916), (82, 257458), (109, 193684), (164, 128729), (218, 96842), (436, 48421), (1181, 17876), (2362, 8938), (4469, 4724)]